Oes trade liberalisation help or hinder environmental protection?

required readings:
1. Jennifer Clapp and Peter Dauvergne, Paths to a Greener World: The Political Economy of the Global Environment (Cambridge, MA: MIT Press, 2011), chapter 7 (Global Financing and the Environment), 193-225
2. Eckersley, Robyn. The Big Chill: The WTO and Multilateral Environmental Agreements, Global Environmental Politics 4(2) (2004):24-50.
3. Ludivine Tamiotti et. al. Trade and Climate Change: A Report by the United Nations Environment Programme and the World Trade Organization (Geneva:WTO Publications), part II (Trade and Climate Change: Theory and Evidence) 47-66